Specifications:

  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (21.5 Inches)
  • Downstream Sensor as listed per applications
  • Heated
  • 4 wire configuration
  • 4 terminal configuration
  • Replaces dealer part numbers: 25333817, 25333812
  • Built and tested to strict quality control standards

Note: For clarification purposes:

  • Upstream location is between the catalytic converter and the engine
  • Downstream location is between the catalytic converter and the tailpipe

If you have a bad O2 sensor causing your vehicle to fail an emission test then this is the part for you.

Our electrical and electronic parts are subject to strict quality control testing .  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed

Note:  You may be required to reset the vehicle’s computer after installation of this part.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

  1. step : Identifying your Oxygen Sensors (0:57)
    • Upstream oxygen sensors are located in between the engine and the catalytic converter
    • Downstream oxygen sensors are located in the catalytic converter or farther away from the engine than the catalytic converter
    • Locate your vehicle's firing order diagram
    • The bank that contains cylinder one is bank one
    • The bank that does not contain cylinder one is bank two, even if it does not contain cylinder two

Tools needed for replacement:

    1A - No Tools Needed

  • No Tools Needed

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Browse 1 question Browse 1 question and 2 answers
This states it fits the 4.3 and 6.0. Does this fit the 5.3 and are they the same for bank 1 and bank 2?
Sam S on Dec 11, 2015
BEST ANSWER: Hello and thank you for your inquiry. This will fit different applications for different vehicle. It does not appear to be bank sensitive, but can fit downstream per the application. Thank you and have a great day!

How-to Video:

(03:08 min)

Tools List:

    1A - No Tools Needed

  • No Tools Needed



This part replaces:

  • OE # 25333812
  • OE # 25333817
  • Standard Motor Products SG970

Vehicle Fit

  • 2003-2006 Cadillac Escalade ESV Downstream O2 Oxygen Sensor V8 6.0L
  • 2003-2006 Cadillac Escalade EXT Downstream O2 Oxygen Sensor V8 6.0L
  • 2002-2007 Chevy Silverado 1500 Downstream O2 Oxygen Sensor V8 6.0L
  • 2007 Chevy Silverado 1500 Classic Downstream O2 Oxygen Sensor V8 6.0L
  • 2001-2003 Chevy Silverado 1500 HD Downstream O2 Oxygen Sensor
  • 2005-2006 Chevy Silverado 1500 HD Downstream O2 Oxygen Sensor
  • 2007 Chevy Silverado 1500 HD Classic Downstream O2 Oxygen Sensor
  • 2002-2004 Chevy Silverado 2500 Downstream O2 Oxygen Sensor V8 6.0L
  • 2002-2006 Chevy Silverado 2500 HD Downstream O2 Oxygen Sensor V8 6.0L
  • 2007 Chevy Silverado 2500 HD Classic Downstream O2 Oxygen Sensor V8 6.0L
  • 2002-2006 Chevy Silverado 3500 Downstream O2 Oxygen Sensor V8 6.0L
  • 2007 Chevy Silverado 3500 Classic Downstream O2 Oxygen Sensor V8 6.0L
  • 2002-2006 Chevy Suburban 2500 Downstream O2 Oxygen Sensor V8 6.0L
  • 2002-2006 GMC Sierra 1500 Downstream O2 Oxygen Sensor V8 6.0L
  • 2007 GMC Sierra 1500 Classic Downstream O2 Oxygen Sensor V8 6.0L
  • 2002-2003 GMC Sierra 1500 HD Downstream O2 Oxygen Sensor
  • 2005-2006 GMC Sierra 1500 HD Downstream O2 Oxygen Sensor
  • 2007 GMC Sierra 1500 HD Classic Downstream O2 Oxygen Sensor
  • 2002-2004 GMC Sierra 2500 Downstream O2 Oxygen Sensor V8 6.0L
  • 2002-2006 GMC Sierra 2500 HD Downstream O2 Oxygen Sensor V8 6.0L
  • 2007 GMC Sierra 2500 HD Classic Downstream O2 Oxygen Sensor V8 6.0L
  • 2002-2007 GMC Sierra 3500 Downstream O2 Oxygen Sensor V8 6.0L
  • 2007 GMC Sierra 3500 Classic Downstream O2 Oxygen Sensor V8 6.0L
  • 2004 GMC Yukon Downstream O2 Oxygen Sensor V8 6.0L
  • 2002-2006 GMC Yukon XL 2500 Downstream O2 Oxygen Sensor V8 6.0L
  • 2002-2003 Hummer H2 Downstream O2 Oxygen Sensor V8 6.0L
Part #: 1AEOS00074

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